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真空熱壓技術(shù)制備EOS實(shí)驗(yàn)用LiH薄膜
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Preparation of LiH Film Used in EOS Experiment by Vacuum Hot Pressing Technology
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    摘要:

    氫化鋰（LiH）是重要的熱核材料，其狀態(tài)方程參數(shù)是慣性約束聚變研究的重要內(nèi)容。本工作采用真空熱壓技術(shù)制備氫化鋰薄膜，在真空度小于5.0×10-4 Pa，溫度450 ℃，升溫速率10 ℃/min，采取分段加壓、退火，獲得了厚度小于100 μm、厚度一致性約98%的氫化鋰薄膜，表面粗糙度小于100 nm，熱壓后密度增加，達(dá)到0.780 g/cm3。X射線衍射分析結(jié)果表明：薄膜的主要成分為氫化鋰，薄膜存在擇優(yōu)取向、內(nèi)應(yīng)力、晶粒細(xì)化等特征。

    Abstract:

    Lithium hydride (LiH) is one important thermo nuclear materials and its equation of state (EOS) date is of importance in inertial confinement fusion. In this paper, LiH film was produced by vacuum hot pressing technology. Process parameters were given below: vacuum was less than 5.0×10-4 Pa, the temperature was 450 °C, calefactive velocity 10 °C /min and the pressure from 4000 N/cm2 to 25000 N/cm2. The results indicate that thickness of LiH film is less than 100 μm, surface root mean square roughness less than 100 nm and thickness uniformity more than 98%. And the main component of film is LiH from XRD. LiH film has prefer-oriented, crystal-fined characteristic and internal stress.

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謝 軍,邢丕峰,易泰民,趙利平,李朝陽,楊蒙生,鄭鳳成,張 林.真空熱壓技術(shù)制備EOS實(shí)驗(yàn)用LiH薄膜[J].稀有金屬材料與工程,2013,42(2):424~428.[Xie Jun, Xing Pifeng, Yi Taimin, Zhao Liping, Li Zhaoyang, Yang Mengsheng, Zheng Fengcheng, Zhang Lin. Preparation of LiH Film Used in EOS Experiment by Vacuum Hot Pressing Technology[J]. Rare Metal Materials and Engineering,2013,42(2):424~428.]
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  • 收稿日期:2012-02-19
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